Full throttle Electric Supercharger Build Thread

[Robftss]

Toma and Fenton, thanks for all the work and feedback. Bu-Tang was @ the dyno as well, we were all pretty excited to see the 200 HP line eclipsed @ 6500 rpm. Toma made a safe quick tune to get us going and really pioneered some 'out of the box' thinking. The end goal is to make a simple tune to maximize this application, but it does work on the stock tune with some mindfulness below 3000 rpm (same as a Nitrous system).

To summarize the present results:

168 hp @ 7100 rpm to 205.7 hp @ 6750 rpm +22.4%
131 ft-lbs @ 4800 rpm to 185 ft-lbs @ 4400 rpm + 41.2%

Best gains: +65 hp @ 4600 rpm (76%!) and +80 ft-lbs @ 4600 rpm (76%!).

All this with ~3.2 kW of power, no physical alterations to car, engine or alternator, $90 worth of SLA batteries for the discharge pack, and a ~20% useable duty cycle.

[Raven604]

We have 94 with 0% ethanol in Vancouver. In fact that's all my car has ever seen.

[Raven604]

Originally Posted by fenton

Some places dont have access to 94 octane.

Vancouver has very good chevron 93. All the big cities have 94 with 10 percent ethanol. In some places they only have 91 and if they dont have shell it might have 10% ethanol in it to.

Oh yeah and chevron doesn't have 93 in Vancouver. Only 91 with 10% and the 94

[SloS14]

I wish these bad boys could work in this system:
http://www.batteryspace.com/Powerize...B-and-LED.aspx

[Robftss]

Originally Posted by SloS14

I wish these bad boys could work in this system:
http://www.batteryspace.com/Powerize...B-and-LED.aspx

$500 ?, 1/3 discharge capability?

Why?

The PCB limits the charge/discharge, going to a 200 amp PCB = more$$$$.

I would like to see the discharge graph @ 0 Celsius


SLA's $90. for 2.

[s2d4]

Originally Posted by Baker

Calculation of the battery charge is 18A/H thats 1 Amp for 18 hours thus the battery charge density measured in an hourly rate. 1 Amp for Rates Hours A/H's. . the cc/a of the battery is 270 if this was at max draw 270CCA it would in theory last 18/ by 270
I do know what ur saying, there is other variables to consider such as temperature. it was just a ruff figure to show others what may be achievable.

CCA rating is only for 30 seconds.. Your math is fine, It just won't do that for 6+ minutes.

Originally Posted by Baker

Now i do believe that its a 4kw motor on the echarger? correct me if I'm wrong. On a 28V (2x12V batteries) system would be drawing the same amount of amperage out of the batteries as what i just stated.

4000W/24V = 166.6 Amp Currant draw.

Yeap, I didn't know about the rating of the current motor which I still think could be improved down the track.
If we have data on how much torque is required to drive the compressor wheel at 50,000rpm then the motor choice could definitely be sized better. This is a good thing because it shows that there is so much potential in this setup in the future.
That previous comment was in reference to your proposed charging circuit supplying that much current at 56 volts.
Their current methodology of the isolation switch in WOT makes much better sense instead of redoing the charging/protection circuit.

[CBR600RR]

Originally Posted by Robftss

but it does work on the stock tune with some mindfulness below 3000 rpm (same as a Nitrous system).

What do you mean by this?

[Robftss]

Originally Posted by CBR600RR

What do you mean by this?

For the past week Fenton has been driving with the stock tune, being mindful of not going WOT below 3K, it trips a limit in the ECU and CEL comes on. There are previous posts regard this, as well as the stock tune with FTS dyno showing AFR results.

[Bu-Tang]

Calgary 94 with "upto" 10 percent ethanol is the best we get, our shell 91 however has no ethanol and is actually very good has just not as high but no crickets. I wish we had e85.

Sent from my SGH-I727R using Tapatalk 2

[carbonBLUE]

Originally Posted by Baker

I was reading about a young girl that has created a new super-cap that can hold more power than a li ion battery and is under development. this shit is happening it wont be long. there are some big things happening now these new super caps are in the works, the new li ion batteries are on the move. The demand for alternative power source is high atm and is driving the market toward projects like this, electric vehicles smaller less fuel demanding cars.

http://hothardware.com/News/Californ...In-20-Seconds/

http://edition.cnn.com/2013/05/20/tech/whiz-kid

http://www.extremetech.com/computing...0-times-faster

Changes are coming
@Calum
I have no idea i was just looking around batterys would be around the $500-600
no idea what a compressor would be worth couldn't be much, im thinking of getting a quote on a Switched Reluctance Motor,

http://www.chargedevs.com/content/fe...uctance-motors

The hardest thing is the controller I'm learning online about the electronics the SR motor is hard to program and even make it move is a mission but I'm almost considering making something up.

I think a custom 8kw motor that is capable of 75000rpm should do it. Id estimate that with 8kw and a higher rpm with full adjustability of the motor being a SR Drive would be able to crack the 250hp mark. off the stats these guys have provided

I should stop cluttering the thread lol

companies dont really invent anything new now adays, its people like me and you that invent great things, this is not my study but im doing things equally impressive, they just buy the ideas off people like us and brand it as theirs... lol... off topic but the tech is coming! a 75,000 rpm motor must have some crazy tolerances!!!!!! aeronautics type certification on something with those capabilities (speaking figuratively)

[carbonBLUE]

Originally Posted by mid_life_crisis

The cap may be capable of taking and holding that kind of charge at that rate, but you'll still need a charging station cable of delivering the power that rapidly. I can see people lining up at their local power stations to fill up their cars.

its simple problem solving really, you have multiple tanks of similar design under a charge station, they build up power when not charging a vehicle and deliver the power instantly when needed and wouldnt need large demands from the powergrid all the time but a slow charge rate that is sufficient for operation...

[mid_life_crisis]

What is the proper way to limit the output of this motor?
I mean the one on the electrocharger, not the engine in the car.
We know it can be done because it turns on at low speed whenever there is an unacceptable pressure differential in the intake system.

[mid_life_crisis]

Originally Posted by carbonBLUE

its simple problem solving really, you have multiple tanks of similar design under a charge station, they build up power when not charging a vehicle and deliver the power instantly when needed and wouldnt need large demands from the powergrid all the time but a slow charge rate that is sufficient for operation...

Like making ice in the basement of a skyscraper at night when the electricity is cheaper instead of running the AC all day.

[CBR600RR]

Originally Posted by Robftss

For the past week Fenton has been driving with the stock tune, being mindful of not going WOT below 3K, it trips a limit in the ECU and CEL comes on. There are previous posts regard this, as well as the stock tune with FTS dyno showing AFR results.

ya I think I read something about that - the computer reads that there is over 5psi or something and throws a CEL?